package com.Controller;

import org.springframework.boot.CommandLineRunner;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLOutput;
import java.util.Arrays;

@RestController
public class HelloController {
    @RequestMapping("/")
    public String hello() {
        return "Spring boot";
    }

    @Bean
    public CommandLineRunner CommandLineRunner(ApplicationContext ctx) {
        return args -> {
            System.out.println("由Spring Boot注册的所有Bean：");
            String[] beanNames = ctx.getBeanDefinitionNames();
            Arrays.sort(beanNames);
            for (String beanName : beanNames) {
                System.out.println(beanName);
            }
            System.out.println("结束");
        };
    }
}




